forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1234 lines
32 KiB
1234 lines
32 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
|
/**************************************************************** |
|
|
|
Siano Mobile Silicon, Inc. |
|
MDTV receiver kernel modules. |
|
Copyright (C) 2006-2008, Uri Shkolnik |
|
|
|
|
|
****************************************************************/ |
|
|
|
#include "smscoreapi.h" |
|
|
|
#include <linux/module.h> |
|
#include <linux/slab.h> |
|
#include <linux/init.h> |
|
#include <asm/div64.h> |
|
|
|
#include <media/dmxdev.h> |
|
#include <media/dvbdev.h> |
|
#include <media/dvb_demux.h> |
|
#include <media/dvb_frontend.h> |
|
|
|
#include "sms-cards.h" |
|
|
|
#include "smsdvb.h" |
|
|
|
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); |
|
|
|
static struct list_head g_smsdvb_clients; |
|
static struct mutex g_smsdvb_clientslock; |
|
|
|
static u32 sms_to_guard_interval_table[] = { |
|
[0] = GUARD_INTERVAL_1_32, |
|
[1] = GUARD_INTERVAL_1_16, |
|
[2] = GUARD_INTERVAL_1_8, |
|
[3] = GUARD_INTERVAL_1_4, |
|
}; |
|
|
|
static u32 sms_to_code_rate_table[] = { |
|
[0] = FEC_1_2, |
|
[1] = FEC_2_3, |
|
[2] = FEC_3_4, |
|
[3] = FEC_5_6, |
|
[4] = FEC_7_8, |
|
}; |
|
|
|
|
|
static u32 sms_to_hierarchy_table[] = { |
|
[0] = HIERARCHY_NONE, |
|
[1] = HIERARCHY_1, |
|
[2] = HIERARCHY_2, |
|
[3] = HIERARCHY_4, |
|
}; |
|
|
|
static u32 sms_to_modulation_table[] = { |
|
[0] = QPSK, |
|
[1] = QAM_16, |
|
[2] = QAM_64, |
|
[3] = DQPSK, |
|
}; |
|
|
|
|
|
/* Events that may come from DVB v3 adapter */ |
|
static void sms_board_dvb3_event(struct smsdvb_client_t *client, |
|
enum SMS_DVB3_EVENTS event) { |
|
|
|
struct smscore_device_t *coredev = client->coredev; |
|
switch (event) { |
|
case DVB3_EVENT_INIT: |
|
pr_debug("DVB3_EVENT_INIT\n"); |
|
sms_board_event(coredev, BOARD_EVENT_BIND); |
|
break; |
|
case DVB3_EVENT_SLEEP: |
|
pr_debug("DVB3_EVENT_SLEEP\n"); |
|
sms_board_event(coredev, BOARD_EVENT_POWER_SUSPEND); |
|
break; |
|
case DVB3_EVENT_HOTPLUG: |
|
pr_debug("DVB3_EVENT_HOTPLUG\n"); |
|
sms_board_event(coredev, BOARD_EVENT_POWER_INIT); |
|
break; |
|
case DVB3_EVENT_FE_LOCK: |
|
if (client->event_fe_state != DVB3_EVENT_FE_LOCK) { |
|
client->event_fe_state = DVB3_EVENT_FE_LOCK; |
|
pr_debug("DVB3_EVENT_FE_LOCK\n"); |
|
sms_board_event(coredev, BOARD_EVENT_FE_LOCK); |
|
} |
|
break; |
|
case DVB3_EVENT_FE_UNLOCK: |
|
if (client->event_fe_state != DVB3_EVENT_FE_UNLOCK) { |
|
client->event_fe_state = DVB3_EVENT_FE_UNLOCK; |
|
pr_debug("DVB3_EVENT_FE_UNLOCK\n"); |
|
sms_board_event(coredev, BOARD_EVENT_FE_UNLOCK); |
|
} |
|
break; |
|
case DVB3_EVENT_UNC_OK: |
|
if (client->event_unc_state != DVB3_EVENT_UNC_OK) { |
|
client->event_unc_state = DVB3_EVENT_UNC_OK; |
|
pr_debug("DVB3_EVENT_UNC_OK\n"); |
|
sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_OK); |
|
} |
|
break; |
|
case DVB3_EVENT_UNC_ERR: |
|
if (client->event_unc_state != DVB3_EVENT_UNC_ERR) { |
|
client->event_unc_state = DVB3_EVENT_UNC_ERR; |
|
pr_debug("DVB3_EVENT_UNC_ERR\n"); |
|
sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_ERRORS); |
|
} |
|
break; |
|
|
|
default: |
|
pr_err("Unknown dvb3 api event\n"); |
|
break; |
|
} |
|
} |
|
|
|
static void smsdvb_stats_not_ready(struct dvb_frontend *fe) |
|
{ |
|
struct smsdvb_client_t *client = |
|
container_of(fe, struct smsdvb_client_t, frontend); |
|
struct smscore_device_t *coredev = client->coredev; |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
int i, n_layers; |
|
|
|
switch (smscore_get_device_mode(coredev)) { |
|
case DEVICE_MODE_ISDBT: |
|
case DEVICE_MODE_ISDBT_BDA: |
|
n_layers = 4; |
|
break; |
|
default: |
|
n_layers = 1; |
|
} |
|
|
|
/* Global stats */ |
|
c->strength.len = 1; |
|
c->cnr.len = 1; |
|
c->strength.stat[0].scale = FE_SCALE_DECIBEL; |
|
c->cnr.stat[0].scale = FE_SCALE_DECIBEL; |
|
|
|
/* Per-layer stats */ |
|
c->post_bit_error.len = n_layers; |
|
c->post_bit_count.len = n_layers; |
|
c->block_error.len = n_layers; |
|
c->block_count.len = n_layers; |
|
|
|
/* |
|
* Put all of them at FE_SCALE_NOT_AVAILABLE. They're dynamically |
|
* changed when the stats become available. |
|
*/ |
|
for (i = 0; i < n_layers; i++) { |
|
c->post_bit_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE; |
|
c->post_bit_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE; |
|
c->block_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE; |
|
c->block_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE; |
|
} |
|
} |
|
|
|
static inline int sms_to_mode(u32 mode) |
|
{ |
|
switch (mode) { |
|
case 2: |
|
return TRANSMISSION_MODE_2K; |
|
case 4: |
|
return TRANSMISSION_MODE_4K; |
|
case 8: |
|
return TRANSMISSION_MODE_8K; |
|
} |
|
return TRANSMISSION_MODE_AUTO; |
|
} |
|
|
|
static inline int sms_to_status(u32 is_demod_locked, u32 is_rf_locked) |
|
{ |
|
if (is_demod_locked) |
|
return FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | |
|
FE_HAS_SYNC | FE_HAS_LOCK; |
|
|
|
if (is_rf_locked) |
|
return FE_HAS_SIGNAL | FE_HAS_CARRIER; |
|
|
|
return 0; |
|
} |
|
|
|
static inline u32 sms_to_bw(u32 value) |
|
{ |
|
return value * 1000000; |
|
} |
|
|
|
#define convert_from_table(value, table, defval) ({ \ |
|
u32 __ret; \ |
|
if (value < ARRAY_SIZE(table)) \ |
|
__ret = table[value]; \ |
|
else \ |
|
__ret = defval; \ |
|
__ret; \ |
|
}) |
|
|
|
#define sms_to_guard_interval(value) \ |
|
convert_from_table(value, sms_to_guard_interval_table, \ |
|
GUARD_INTERVAL_AUTO); |
|
|
|
#define sms_to_code_rate(value) \ |
|
convert_from_table(value, sms_to_code_rate_table, \ |
|
FEC_NONE); |
|
|
|
#define sms_to_hierarchy(value) \ |
|
convert_from_table(value, sms_to_hierarchy_table, \ |
|
FEC_NONE); |
|
|
|
#define sms_to_modulation(value) \ |
|
convert_from_table(value, sms_to_modulation_table, \ |
|
FEC_NONE); |
|
|
|
static void smsdvb_update_tx_params(struct smsdvb_client_t *client, |
|
struct sms_tx_stats *p) |
|
{ |
|
struct dvb_frontend *fe = &client->frontend; |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
|
|
c->frequency = p->frequency; |
|
client->fe_status = sms_to_status(p->is_demod_locked, 0); |
|
c->bandwidth_hz = sms_to_bw(p->bandwidth); |
|
c->transmission_mode = sms_to_mode(p->transmission_mode); |
|
c->guard_interval = sms_to_guard_interval(p->guard_interval); |
|
c->code_rate_HP = sms_to_code_rate(p->code_rate); |
|
c->code_rate_LP = sms_to_code_rate(p->lp_code_rate); |
|
c->hierarchy = sms_to_hierarchy(p->hierarchy); |
|
c->modulation = sms_to_modulation(p->constellation); |
|
} |
|
|
|
static void smsdvb_update_per_slices(struct smsdvb_client_t *client, |
|
struct RECEPTION_STATISTICS_PER_SLICES_S *p) |
|
{ |
|
struct dvb_frontend *fe = &client->frontend; |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
u64 tmp; |
|
|
|
client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked); |
|
c->modulation = sms_to_modulation(p->constellation); |
|
|
|
/* signal Strength, in DBm */ |
|
c->strength.stat[0].uvalue = p->in_band_power * 1000; |
|
|
|
/* Carrier to noise ratio, in DB */ |
|
c->cnr.stat[0].svalue = p->snr * 1000; |
|
|
|
/* PER/BER requires demod lock */ |
|
if (!p->is_demod_locked) |
|
return; |
|
|
|
/* TS PER */ |
|
client->last_per = c->block_error.stat[0].uvalue; |
|
c->block_error.stat[0].scale = FE_SCALE_COUNTER; |
|
c->block_count.stat[0].scale = FE_SCALE_COUNTER; |
|
c->block_error.stat[0].uvalue += p->ets_packets; |
|
c->block_count.stat[0].uvalue += p->ets_packets + p->ts_packets; |
|
|
|
/* ber */ |
|
c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; |
|
c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; |
|
c->post_bit_error.stat[0].uvalue += p->ber_error_count; |
|
c->post_bit_count.stat[0].uvalue += p->ber_bit_count; |
|
|
|
/* Legacy PER/BER */ |
|
tmp = p->ets_packets * 65535ULL; |
|
if (p->ts_packets + p->ets_packets) |
|
do_div(tmp, p->ts_packets + p->ets_packets); |
|
client->legacy_per = tmp; |
|
} |
|
|
|
static void smsdvb_update_dvb_stats(struct smsdvb_client_t *client, |
|
struct sms_stats *p) |
|
{ |
|
struct dvb_frontend *fe = &client->frontend; |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
|
|
if (client->prt_dvb_stats) |
|
client->prt_dvb_stats(client->debug_data, p); |
|
|
|
client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked); |
|
|
|
/* Update DVB modulation parameters */ |
|
c->frequency = p->frequency; |
|
client->fe_status = sms_to_status(p->is_demod_locked, 0); |
|
c->bandwidth_hz = sms_to_bw(p->bandwidth); |
|
c->transmission_mode = sms_to_mode(p->transmission_mode); |
|
c->guard_interval = sms_to_guard_interval(p->guard_interval); |
|
c->code_rate_HP = sms_to_code_rate(p->code_rate); |
|
c->code_rate_LP = sms_to_code_rate(p->lp_code_rate); |
|
c->hierarchy = sms_to_hierarchy(p->hierarchy); |
|
c->modulation = sms_to_modulation(p->constellation); |
|
|
|
/* update reception data */ |
|
c->lna = p->is_external_lna_on ? 1 : 0; |
|
|
|
/* Carrier to noise ratio, in DB */ |
|
c->cnr.stat[0].svalue = p->SNR * 1000; |
|
|
|
/* signal Strength, in DBm */ |
|
c->strength.stat[0].uvalue = p->in_band_pwr * 1000; |
|
|
|
/* PER/BER requires demod lock */ |
|
if (!p->is_demod_locked) |
|
return; |
|
|
|
/* TS PER */ |
|
client->last_per = c->block_error.stat[0].uvalue; |
|
c->block_error.stat[0].scale = FE_SCALE_COUNTER; |
|
c->block_count.stat[0].scale = FE_SCALE_COUNTER; |
|
c->block_error.stat[0].uvalue += p->error_ts_packets; |
|
c->block_count.stat[0].uvalue += p->total_ts_packets; |
|
|
|
/* ber */ |
|
c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; |
|
c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; |
|
c->post_bit_error.stat[0].uvalue += p->ber_error_count; |
|
c->post_bit_count.stat[0].uvalue += p->ber_bit_count; |
|
|
|
/* Legacy PER/BER */ |
|
client->legacy_ber = p->ber; |
|
}; |
|
|
|
static void smsdvb_update_isdbt_stats(struct smsdvb_client_t *client, |
|
struct sms_isdbt_stats *p) |
|
{ |
|
struct dvb_frontend *fe = &client->frontend; |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
struct sms_isdbt_layer_stats *lr; |
|
int i, n_layers; |
|
|
|
if (client->prt_isdb_stats) |
|
client->prt_isdb_stats(client->debug_data, p); |
|
|
|
client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked); |
|
|
|
/* |
|
* Firmware 2.1 seems to report only lock status and |
|
* signal strength. The signal strength indicator is at the |
|
* wrong field. |
|
*/ |
|
if (p->statistics_type == 0) { |
|
c->strength.stat[0].uvalue = ((s32)p->transmission_mode) * 1000; |
|
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; |
|
return; |
|
} |
|
|
|
/* Update ISDB-T transmission parameters */ |
|
c->frequency = p->frequency; |
|
c->bandwidth_hz = sms_to_bw(p->bandwidth); |
|
c->transmission_mode = sms_to_mode(p->transmission_mode); |
|
c->guard_interval = sms_to_guard_interval(p->guard_interval); |
|
c->isdbt_partial_reception = p->partial_reception ? 1 : 0; |
|
n_layers = p->num_of_layers; |
|
if (n_layers < 1) |
|
n_layers = 1; |
|
if (n_layers > 3) |
|
n_layers = 3; |
|
c->isdbt_layer_enabled = 0; |
|
|
|
/* update reception data */ |
|
c->lna = p->is_external_lna_on ? 1 : 0; |
|
|
|
/* Carrier to noise ratio, in DB */ |
|
c->cnr.stat[0].svalue = p->SNR * 1000; |
|
|
|
/* signal Strength, in DBm */ |
|
c->strength.stat[0].uvalue = p->in_band_pwr * 1000; |
|
|
|
/* PER/BER and per-layer stats require demod lock */ |
|
if (!p->is_demod_locked) |
|
return; |
|
|
|
client->last_per = c->block_error.stat[0].uvalue; |
|
|
|
/* Clears global counters, as the code below will sum it again */ |
|
c->block_error.stat[0].uvalue = 0; |
|
c->block_count.stat[0].uvalue = 0; |
|
c->block_error.stat[0].scale = FE_SCALE_COUNTER; |
|
c->block_count.stat[0].scale = FE_SCALE_COUNTER; |
|
c->post_bit_error.stat[0].uvalue = 0; |
|
c->post_bit_count.stat[0].uvalue = 0; |
|
c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; |
|
c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; |
|
|
|
for (i = 0; i < n_layers; i++) { |
|
lr = &p->layer_info[i]; |
|
|
|
/* Update per-layer transmission parameters */ |
|
if (lr->number_of_segments > 0 && lr->number_of_segments < 13) { |
|
c->isdbt_layer_enabled |= 1 << i; |
|
c->layer[i].segment_count = lr->number_of_segments; |
|
} else { |
|
continue; |
|
} |
|
c->layer[i].modulation = sms_to_modulation(lr->constellation); |
|
|
|
/* TS PER */ |
|
c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER; |
|
c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER; |
|
c->block_error.stat[i + 1].uvalue += lr->error_ts_packets; |
|
c->block_count.stat[i + 1].uvalue += lr->total_ts_packets; |
|
|
|
/* Update global PER counter */ |
|
c->block_error.stat[0].uvalue += lr->error_ts_packets; |
|
c->block_count.stat[0].uvalue += lr->total_ts_packets; |
|
|
|
/* BER */ |
|
c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER; |
|
c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER; |
|
c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count; |
|
c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count; |
|
|
|
/* Update global BER counter */ |
|
c->post_bit_error.stat[0].uvalue += lr->ber_error_count; |
|
c->post_bit_count.stat[0].uvalue += lr->ber_bit_count; |
|
} |
|
} |
|
|
|
static void smsdvb_update_isdbt_stats_ex(struct smsdvb_client_t *client, |
|
struct sms_isdbt_stats_ex *p) |
|
{ |
|
struct dvb_frontend *fe = &client->frontend; |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
struct sms_isdbt_layer_stats *lr; |
|
int i, n_layers; |
|
|
|
if (client->prt_isdb_stats_ex) |
|
client->prt_isdb_stats_ex(client->debug_data, p); |
|
|
|
/* Update ISDB-T transmission parameters */ |
|
c->frequency = p->frequency; |
|
client->fe_status = sms_to_status(p->is_demod_locked, 0); |
|
c->bandwidth_hz = sms_to_bw(p->bandwidth); |
|
c->transmission_mode = sms_to_mode(p->transmission_mode); |
|
c->guard_interval = sms_to_guard_interval(p->guard_interval); |
|
c->isdbt_partial_reception = p->partial_reception ? 1 : 0; |
|
n_layers = p->num_of_layers; |
|
if (n_layers < 1) |
|
n_layers = 1; |
|
if (n_layers > 3) |
|
n_layers = 3; |
|
c->isdbt_layer_enabled = 0; |
|
|
|
/* update reception data */ |
|
c->lna = p->is_external_lna_on ? 1 : 0; |
|
|
|
/* Carrier to noise ratio, in DB */ |
|
c->cnr.stat[0].svalue = p->SNR * 1000; |
|
|
|
/* signal Strength, in DBm */ |
|
c->strength.stat[0].uvalue = p->in_band_pwr * 1000; |
|
|
|
/* PER/BER and per-layer stats require demod lock */ |
|
if (!p->is_demod_locked) |
|
return; |
|
|
|
client->last_per = c->block_error.stat[0].uvalue; |
|
|
|
/* Clears global counters, as the code below will sum it again */ |
|
c->block_error.stat[0].uvalue = 0; |
|
c->block_count.stat[0].uvalue = 0; |
|
c->block_error.stat[0].scale = FE_SCALE_COUNTER; |
|
c->block_count.stat[0].scale = FE_SCALE_COUNTER; |
|
c->post_bit_error.stat[0].uvalue = 0; |
|
c->post_bit_count.stat[0].uvalue = 0; |
|
c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; |
|
c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; |
|
|
|
c->post_bit_error.len = n_layers + 1; |
|
c->post_bit_count.len = n_layers + 1; |
|
c->block_error.len = n_layers + 1; |
|
c->block_count.len = n_layers + 1; |
|
for (i = 0; i < n_layers; i++) { |
|
lr = &p->layer_info[i]; |
|
|
|
/* Update per-layer transmission parameters */ |
|
if (lr->number_of_segments > 0 && lr->number_of_segments < 13) { |
|
c->isdbt_layer_enabled |= 1 << i; |
|
c->layer[i].segment_count = lr->number_of_segments; |
|
} else { |
|
continue; |
|
} |
|
c->layer[i].modulation = sms_to_modulation(lr->constellation); |
|
|
|
/* TS PER */ |
|
c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER; |
|
c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER; |
|
c->block_error.stat[i + 1].uvalue += lr->error_ts_packets; |
|
c->block_count.stat[i + 1].uvalue += lr->total_ts_packets; |
|
|
|
/* Update global PER counter */ |
|
c->block_error.stat[0].uvalue += lr->error_ts_packets; |
|
c->block_count.stat[0].uvalue += lr->total_ts_packets; |
|
|
|
/* ber */ |
|
c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER; |
|
c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER; |
|
c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count; |
|
c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count; |
|
|
|
/* Update global ber counter */ |
|
c->post_bit_error.stat[0].uvalue += lr->ber_error_count; |
|
c->post_bit_count.stat[0].uvalue += lr->ber_bit_count; |
|
} |
|
} |
|
|
|
static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb) |
|
{ |
|
struct smsdvb_client_t *client = (struct smsdvb_client_t *) context; |
|
struct sms_msg_hdr *phdr = (struct sms_msg_hdr *) (((u8 *) cb->p) |
|
+ cb->offset); |
|
void *p = phdr + 1; |
|
struct dvb_frontend *fe = &client->frontend; |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
bool is_status_update = false; |
|
|
|
switch (phdr->msg_type) { |
|
case MSG_SMS_DVBT_BDA_DATA: |
|
/* |
|
* Only feed data to dvb demux if are there any feed listening |
|
* to it and if the device has tuned |
|
*/ |
|
if (client->feed_users && client->has_tuned) |
|
dvb_dmx_swfilter(&client->demux, p, |
|
cb->size - sizeof(struct sms_msg_hdr)); |
|
break; |
|
|
|
case MSG_SMS_RF_TUNE_RES: |
|
case MSG_SMS_ISDBT_TUNE_RES: |
|
complete(&client->tune_done); |
|
break; |
|
|
|
case MSG_SMS_SIGNAL_DETECTED_IND: |
|
client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER | |
|
FE_HAS_VITERBI | FE_HAS_SYNC | |
|
FE_HAS_LOCK; |
|
|
|
is_status_update = true; |
|
break; |
|
|
|
case MSG_SMS_NO_SIGNAL_IND: |
|
client->fe_status = 0; |
|
|
|
is_status_update = true; |
|
break; |
|
|
|
case MSG_SMS_TRANSMISSION_IND: |
|
smsdvb_update_tx_params(client, p); |
|
|
|
is_status_update = true; |
|
break; |
|
|
|
case MSG_SMS_HO_PER_SLICES_IND: |
|
smsdvb_update_per_slices(client, p); |
|
|
|
is_status_update = true; |
|
break; |
|
|
|
case MSG_SMS_GET_STATISTICS_RES: |
|
switch (smscore_get_device_mode(client->coredev)) { |
|
case DEVICE_MODE_ISDBT: |
|
case DEVICE_MODE_ISDBT_BDA: |
|
smsdvb_update_isdbt_stats(client, p); |
|
break; |
|
default: |
|
/* Skip sms_msg_statistics_info:request_result field */ |
|
smsdvb_update_dvb_stats(client, p + sizeof(u32)); |
|
} |
|
|
|
is_status_update = true; |
|
break; |
|
|
|
/* Only for ISDB-T */ |
|
case MSG_SMS_GET_STATISTICS_EX_RES: |
|
/* Skip sms_msg_statistics_info:request_result field? */ |
|
smsdvb_update_isdbt_stats_ex(client, p + sizeof(u32)); |
|
is_status_update = true; |
|
break; |
|
default: |
|
pr_debug("message not handled\n"); |
|
} |
|
smscore_putbuffer(client->coredev, cb); |
|
|
|
if (is_status_update) { |
|
if (client->fe_status & FE_HAS_LOCK) { |
|
sms_board_dvb3_event(client, DVB3_EVENT_FE_LOCK); |
|
if (client->last_per == c->block_error.stat[0].uvalue) |
|
sms_board_dvb3_event(client, DVB3_EVENT_UNC_OK); |
|
else |
|
sms_board_dvb3_event(client, DVB3_EVENT_UNC_ERR); |
|
client->has_tuned = true; |
|
} else { |
|
smsdvb_stats_not_ready(fe); |
|
client->has_tuned = false; |
|
sms_board_dvb3_event(client, DVB3_EVENT_FE_UNLOCK); |
|
} |
|
complete(&client->stats_done); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void smsdvb_media_device_unregister(struct smsdvb_client_t *client) |
|
{ |
|
#ifdef CONFIG_MEDIA_CONTROLLER_DVB |
|
struct smscore_device_t *coredev = client->coredev; |
|
|
|
if (!coredev->media_dev) |
|
return; |
|
media_device_unregister(coredev->media_dev); |
|
media_device_cleanup(coredev->media_dev); |
|
kfree(coredev->media_dev); |
|
coredev->media_dev = NULL; |
|
#endif |
|
} |
|
|
|
static void smsdvb_unregister_client(struct smsdvb_client_t *client) |
|
{ |
|
/* must be called under clientslock */ |
|
|
|
list_del(&client->entry); |
|
|
|
smsdvb_debugfs_release(client); |
|
smscore_unregister_client(client->smsclient); |
|
dvb_unregister_frontend(&client->frontend); |
|
dvb_dmxdev_release(&client->dmxdev); |
|
dvb_dmx_release(&client->demux); |
|
smsdvb_media_device_unregister(client); |
|
dvb_unregister_adapter(&client->adapter); |
|
kfree(client); |
|
} |
|
|
|
static void smsdvb_onremove(void *context) |
|
{ |
|
kmutex_lock(&g_smsdvb_clientslock); |
|
|
|
smsdvb_unregister_client((struct smsdvb_client_t *) context); |
|
|
|
kmutex_unlock(&g_smsdvb_clientslock); |
|
} |
|
|
|
static int smsdvb_start_feed(struct dvb_demux_feed *feed) |
|
{ |
|
struct smsdvb_client_t *client = |
|
container_of(feed->demux, struct smsdvb_client_t, demux); |
|
struct sms_msg_data pid_msg; |
|
|
|
pr_debug("add pid %d(%x)\n", |
|
feed->pid, feed->pid); |
|
|
|
client->feed_users++; |
|
|
|
pid_msg.x_msg_header.msg_src_id = DVBT_BDA_CONTROL_MSG_ID; |
|
pid_msg.x_msg_header.msg_dst_id = HIF_TASK; |
|
pid_msg.x_msg_header.msg_flags = 0; |
|
pid_msg.x_msg_header.msg_type = MSG_SMS_ADD_PID_FILTER_REQ; |
|
pid_msg.x_msg_header.msg_length = sizeof(pid_msg); |
|
pid_msg.msg_data[0] = feed->pid; |
|
|
|
return smsclient_sendrequest(client->smsclient, |
|
&pid_msg, sizeof(pid_msg)); |
|
} |
|
|
|
static int smsdvb_stop_feed(struct dvb_demux_feed *feed) |
|
{ |
|
struct smsdvb_client_t *client = |
|
container_of(feed->demux, struct smsdvb_client_t, demux); |
|
struct sms_msg_data pid_msg; |
|
|
|
pr_debug("remove pid %d(%x)\n", |
|
feed->pid, feed->pid); |
|
|
|
client->feed_users--; |
|
|
|
pid_msg.x_msg_header.msg_src_id = DVBT_BDA_CONTROL_MSG_ID; |
|
pid_msg.x_msg_header.msg_dst_id = HIF_TASK; |
|
pid_msg.x_msg_header.msg_flags = 0; |
|
pid_msg.x_msg_header.msg_type = MSG_SMS_REMOVE_PID_FILTER_REQ; |
|
pid_msg.x_msg_header.msg_length = sizeof(pid_msg); |
|
pid_msg.msg_data[0] = feed->pid; |
|
|
|
return smsclient_sendrequest(client->smsclient, |
|
&pid_msg, sizeof(pid_msg)); |
|
} |
|
|
|
static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client, |
|
void *buffer, size_t size, |
|
struct completion *completion) |
|
{ |
|
int rc; |
|
|
|
rc = smsclient_sendrequest(client->smsclient, buffer, size); |
|
if (rc < 0) |
|
return rc; |
|
|
|
return wait_for_completion_timeout(completion, |
|
msecs_to_jiffies(2000)) ? |
|
0 : -ETIME; |
|
} |
|
|
|
static int smsdvb_send_statistics_request(struct smsdvb_client_t *client) |
|
{ |
|
int rc; |
|
struct sms_msg_hdr msg; |
|
|
|
/* Don't request stats too fast */ |
|
if (client->get_stats_jiffies && |
|
(!time_after(jiffies, client->get_stats_jiffies))) |
|
return 0; |
|
client->get_stats_jiffies = jiffies + msecs_to_jiffies(100); |
|
|
|
msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID; |
|
msg.msg_dst_id = HIF_TASK; |
|
msg.msg_flags = 0; |
|
msg.msg_length = sizeof(msg); |
|
|
|
switch (smscore_get_device_mode(client->coredev)) { |
|
case DEVICE_MODE_ISDBT: |
|
case DEVICE_MODE_ISDBT_BDA: |
|
/* |
|
* Check for firmware version, to avoid breaking for old cards |
|
*/ |
|
if (client->coredev->fw_version >= 0x800) |
|
msg.msg_type = MSG_SMS_GET_STATISTICS_EX_REQ; |
|
else |
|
msg.msg_type = MSG_SMS_GET_STATISTICS_REQ; |
|
break; |
|
default: |
|
msg.msg_type = MSG_SMS_GET_STATISTICS_REQ; |
|
} |
|
|
|
rc = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg), |
|
&client->stats_done); |
|
|
|
return rc; |
|
} |
|
|
|
static inline int led_feedback(struct smsdvb_client_t *client) |
|
{ |
|
if (!(client->fe_status & FE_HAS_LOCK)) |
|
return sms_board_led_feedback(client->coredev, SMS_LED_OFF); |
|
|
|
return sms_board_led_feedback(client->coredev, |
|
(client->legacy_ber == 0) ? |
|
SMS_LED_HI : SMS_LED_LO); |
|
} |
|
|
|
static int smsdvb_read_status(struct dvb_frontend *fe, enum fe_status *stat) |
|
{ |
|
int rc; |
|
struct smsdvb_client_t *client; |
|
client = container_of(fe, struct smsdvb_client_t, frontend); |
|
|
|
rc = smsdvb_send_statistics_request(client); |
|
|
|
*stat = client->fe_status; |
|
|
|
led_feedback(client); |
|
|
|
return rc; |
|
} |
|
|
|
static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber) |
|
{ |
|
int rc; |
|
struct smsdvb_client_t *client; |
|
|
|
client = container_of(fe, struct smsdvb_client_t, frontend); |
|
|
|
rc = smsdvb_send_statistics_request(client); |
|
|
|
*ber = client->legacy_ber; |
|
|
|
led_feedback(client); |
|
|
|
return rc; |
|
} |
|
|
|
static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength) |
|
{ |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
int rc; |
|
s32 power = (s32) c->strength.stat[0].uvalue; |
|
struct smsdvb_client_t *client; |
|
|
|
client = container_of(fe, struct smsdvb_client_t, frontend); |
|
|
|
rc = smsdvb_send_statistics_request(client); |
|
|
|
if (power < -95) |
|
*strength = 0; |
|
else if (power > -29) |
|
*strength = 65535; |
|
else |
|
*strength = (power + 95) * 65535 / 66; |
|
|
|
led_feedback(client); |
|
|
|
return rc; |
|
} |
|
|
|
static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr) |
|
{ |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
int rc; |
|
struct smsdvb_client_t *client; |
|
|
|
client = container_of(fe, struct smsdvb_client_t, frontend); |
|
|
|
rc = smsdvb_send_statistics_request(client); |
|
|
|
/* Preferred scale for SNR with legacy API: 0.1 dB */ |
|
*snr = ((u32)c->cnr.stat[0].svalue) / 100; |
|
|
|
led_feedback(client); |
|
|
|
return rc; |
|
} |
|
|
|
static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) |
|
{ |
|
int rc; |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
struct smsdvb_client_t *client; |
|
|
|
client = container_of(fe, struct smsdvb_client_t, frontend); |
|
|
|
rc = smsdvb_send_statistics_request(client); |
|
|
|
*ucblocks = c->block_error.stat[0].uvalue; |
|
|
|
led_feedback(client); |
|
|
|
return rc; |
|
} |
|
|
|
static int smsdvb_get_tune_settings(struct dvb_frontend *fe, |
|
struct dvb_frontend_tune_settings *tune) |
|
{ |
|
pr_debug("\n"); |
|
|
|
tune->min_delay_ms = 400; |
|
tune->step_size = 250000; |
|
tune->max_drift = 0; |
|
return 0; |
|
} |
|
|
|
static int smsdvb_dvbt_set_frontend(struct dvb_frontend *fe) |
|
{ |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
struct smsdvb_client_t *client = |
|
container_of(fe, struct smsdvb_client_t, frontend); |
|
|
|
struct { |
|
struct sms_msg_hdr msg; |
|
u32 Data[3]; |
|
} msg; |
|
|
|
int ret; |
|
|
|
client->fe_status = 0; |
|
client->event_fe_state = -1; |
|
client->event_unc_state = -1; |
|
fe->dtv_property_cache.delivery_system = SYS_DVBT; |
|
|
|
msg.msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID; |
|
msg.msg.msg_dst_id = HIF_TASK; |
|
msg.msg.msg_flags = 0; |
|
msg.msg.msg_type = MSG_SMS_RF_TUNE_REQ; |
|
msg.msg.msg_length = sizeof(msg); |
|
msg.Data[0] = c->frequency; |
|
msg.Data[2] = 12000000; |
|
|
|
pr_debug("%s: freq %d band %d\n", __func__, c->frequency, |
|
c->bandwidth_hz); |
|
|
|
switch (c->bandwidth_hz / 1000000) { |
|
case 8: |
|
msg.Data[1] = BW_8_MHZ; |
|
break; |
|
case 7: |
|
msg.Data[1] = BW_7_MHZ; |
|
break; |
|
case 6: |
|
msg.Data[1] = BW_6_MHZ; |
|
break; |
|
case 0: |
|
return -EOPNOTSUPP; |
|
default: |
|
return -EINVAL; |
|
} |
|
/* Disable LNA, if any. An error is returned if no LNA is present */ |
|
ret = sms_board_lna_control(client->coredev, 0); |
|
if (ret == 0) { |
|
enum fe_status status; |
|
|
|
/* tune with LNA off at first */ |
|
ret = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg), |
|
&client->tune_done); |
|
|
|
smsdvb_read_status(fe, &status); |
|
|
|
if (status & FE_HAS_LOCK) |
|
return ret; |
|
|
|
/* previous tune didn't lock - enable LNA and tune again */ |
|
sms_board_lna_control(client->coredev, 1); |
|
} |
|
|
|
return smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg), |
|
&client->tune_done); |
|
} |
|
|
|
static int smsdvb_isdbt_set_frontend(struct dvb_frontend *fe) |
|
{ |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
struct smsdvb_client_t *client = |
|
container_of(fe, struct smsdvb_client_t, frontend); |
|
int board_id = smscore_get_board_id(client->coredev); |
|
struct sms_board *board = sms_get_board(board_id); |
|
enum sms_device_type_st type = board->type; |
|
int ret; |
|
|
|
struct { |
|
struct sms_msg_hdr msg; |
|
u32 Data[4]; |
|
} msg; |
|
|
|
fe->dtv_property_cache.delivery_system = SYS_ISDBT; |
|
|
|
msg.msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID; |
|
msg.msg.msg_dst_id = HIF_TASK; |
|
msg.msg.msg_flags = 0; |
|
msg.msg.msg_type = MSG_SMS_ISDBT_TUNE_REQ; |
|
msg.msg.msg_length = sizeof(msg); |
|
|
|
if (c->isdbt_sb_segment_idx == -1) |
|
c->isdbt_sb_segment_idx = 0; |
|
|
|
if (!c->isdbt_layer_enabled) |
|
c->isdbt_layer_enabled = 7; |
|
|
|
msg.Data[0] = c->frequency; |
|
msg.Data[1] = BW_ISDBT_1SEG; |
|
msg.Data[2] = 12000000; |
|
msg.Data[3] = c->isdbt_sb_segment_idx; |
|
|
|
if (c->isdbt_partial_reception) { |
|
if ((type == SMS_PELE || type == SMS_RIO) && |
|
c->isdbt_sb_segment_count > 3) |
|
msg.Data[1] = BW_ISDBT_13SEG; |
|
else if (c->isdbt_sb_segment_count > 1) |
|
msg.Data[1] = BW_ISDBT_3SEG; |
|
} else if (type == SMS_PELE || type == SMS_RIO) |
|
msg.Data[1] = BW_ISDBT_13SEG; |
|
|
|
c->bandwidth_hz = 6000000; |
|
|
|
pr_debug("freq %d segwidth %d segindex %d\n", |
|
c->frequency, c->isdbt_sb_segment_count, |
|
c->isdbt_sb_segment_idx); |
|
|
|
/* Disable LNA, if any. An error is returned if no LNA is present */ |
|
ret = sms_board_lna_control(client->coredev, 0); |
|
if (ret == 0) { |
|
enum fe_status status; |
|
|
|
/* tune with LNA off at first */ |
|
ret = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg), |
|
&client->tune_done); |
|
|
|
smsdvb_read_status(fe, &status); |
|
|
|
if (status & FE_HAS_LOCK) |
|
return ret; |
|
|
|
/* previous tune didn't lock - enable LNA and tune again */ |
|
sms_board_lna_control(client->coredev, 1); |
|
} |
|
return smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg), |
|
&client->tune_done); |
|
} |
|
|
|
static int smsdvb_set_frontend(struct dvb_frontend *fe) |
|
{ |
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
|
struct smsdvb_client_t *client = |
|
container_of(fe, struct smsdvb_client_t, frontend); |
|
struct smscore_device_t *coredev = client->coredev; |
|
|
|
smsdvb_stats_not_ready(fe); |
|
c->strength.stat[0].uvalue = 0; |
|
c->cnr.stat[0].uvalue = 0; |
|
|
|
client->has_tuned = false; |
|
|
|
switch (smscore_get_device_mode(coredev)) { |
|
case DEVICE_MODE_DVBT: |
|
case DEVICE_MODE_DVBT_BDA: |
|
return smsdvb_dvbt_set_frontend(fe); |
|
case DEVICE_MODE_ISDBT: |
|
case DEVICE_MODE_ISDBT_BDA: |
|
return smsdvb_isdbt_set_frontend(fe); |
|
default: |
|
return -EINVAL; |
|
} |
|
} |
|
|
|
static int smsdvb_init(struct dvb_frontend *fe) |
|
{ |
|
struct smsdvb_client_t *client = |
|
container_of(fe, struct smsdvb_client_t, frontend); |
|
|
|
sms_board_power(client->coredev, 1); |
|
|
|
sms_board_dvb3_event(client, DVB3_EVENT_INIT); |
|
return 0; |
|
} |
|
|
|
static int smsdvb_sleep(struct dvb_frontend *fe) |
|
{ |
|
struct smsdvb_client_t *client = |
|
container_of(fe, struct smsdvb_client_t, frontend); |
|
|
|
sms_board_led_feedback(client->coredev, SMS_LED_OFF); |
|
sms_board_power(client->coredev, 0); |
|
|
|
sms_board_dvb3_event(client, DVB3_EVENT_SLEEP); |
|
|
|
return 0; |
|
} |
|
|
|
static void smsdvb_release(struct dvb_frontend *fe) |
|
{ |
|
/* do nothing */ |
|
} |
|
|
|
static const struct dvb_frontend_ops smsdvb_fe_ops = { |
|
.info = { |
|
.name = "Siano Mobile Digital MDTV Receiver", |
|
.frequency_min_hz = 44250 * kHz, |
|
.frequency_max_hz = 867250 * kHz, |
|
.frequency_stepsize_hz = 250 * kHz, |
|
.caps = FE_CAN_INVERSION_AUTO | |
|
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | |
|
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | |
|
FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | |
|
FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | |
|
FE_CAN_GUARD_INTERVAL_AUTO | |
|
FE_CAN_RECOVER | |
|
FE_CAN_HIERARCHY_AUTO, |
|
}, |
|
|
|
.release = smsdvb_release, |
|
|
|
.set_frontend = smsdvb_set_frontend, |
|
.get_tune_settings = smsdvb_get_tune_settings, |
|
|
|
.read_status = smsdvb_read_status, |
|
.read_ber = smsdvb_read_ber, |
|
.read_signal_strength = smsdvb_read_signal_strength, |
|
.read_snr = smsdvb_read_snr, |
|
.read_ucblocks = smsdvb_read_ucblocks, |
|
|
|
.init = smsdvb_init, |
|
.sleep = smsdvb_sleep, |
|
}; |
|
|
|
static int smsdvb_hotplug(struct smscore_device_t *coredev, |
|
struct device *device, int arrival) |
|
{ |
|
struct smsclient_params_t params; |
|
struct smsdvb_client_t *client; |
|
int rc; |
|
|
|
/* device removal handled by onremove callback */ |
|
if (!arrival) |
|
return 0; |
|
client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL); |
|
if (!client) |
|
return -ENOMEM; |
|
|
|
/* register dvb adapter */ |
|
rc = dvb_register_adapter(&client->adapter, |
|
sms_get_board( |
|
smscore_get_board_id(coredev))->name, |
|
THIS_MODULE, device, adapter_nr); |
|
if (rc < 0) { |
|
pr_err("dvb_register_adapter() failed %d\n", rc); |
|
goto adapter_error; |
|
} |
|
dvb_register_media_controller(&client->adapter, coredev->media_dev); |
|
|
|
/* init dvb demux */ |
|
client->demux.dmx.capabilities = DMX_TS_FILTERING; |
|
client->demux.filternum = 32; /* todo: nova ??? */ |
|
client->demux.feednum = 32; |
|
client->demux.start_feed = smsdvb_start_feed; |
|
client->demux.stop_feed = smsdvb_stop_feed; |
|
|
|
rc = dvb_dmx_init(&client->demux); |
|
if (rc < 0) { |
|
pr_err("dvb_dmx_init failed %d\n", rc); |
|
goto dvbdmx_error; |
|
} |
|
|
|
/* init dmxdev */ |
|
client->dmxdev.filternum = 32; |
|
client->dmxdev.demux = &client->demux.dmx; |
|
client->dmxdev.capabilities = 0; |
|
|
|
rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter); |
|
if (rc < 0) { |
|
pr_err("dvb_dmxdev_init failed %d\n", rc); |
|
goto dmxdev_error; |
|
} |
|
|
|
/* init and register frontend */ |
|
memcpy(&client->frontend.ops, &smsdvb_fe_ops, |
|
sizeof(struct dvb_frontend_ops)); |
|
|
|
switch (smscore_get_device_mode(coredev)) { |
|
case DEVICE_MODE_DVBT: |
|
case DEVICE_MODE_DVBT_BDA: |
|
client->frontend.ops.delsys[0] = SYS_DVBT; |
|
break; |
|
case DEVICE_MODE_ISDBT: |
|
case DEVICE_MODE_ISDBT_BDA: |
|
client->frontend.ops.delsys[0] = SYS_ISDBT; |
|
break; |
|
} |
|
|
|
rc = dvb_register_frontend(&client->adapter, &client->frontend); |
|
if (rc < 0) { |
|
pr_err("frontend registration failed %d\n", rc); |
|
goto frontend_error; |
|
} |
|
|
|
params.initial_id = 1; |
|
params.data_type = MSG_SMS_DVBT_BDA_DATA; |
|
params.onresponse_handler = smsdvb_onresponse; |
|
params.onremove_handler = smsdvb_onremove; |
|
params.context = client; |
|
|
|
rc = smscore_register_client(coredev, ¶ms, &client->smsclient); |
|
if (rc < 0) { |
|
pr_err("smscore_register_client() failed %d\n", rc); |
|
goto client_error; |
|
} |
|
|
|
client->coredev = coredev; |
|
|
|
init_completion(&client->tune_done); |
|
init_completion(&client->stats_done); |
|
|
|
kmutex_lock(&g_smsdvb_clientslock); |
|
|
|
list_add(&client->entry, &g_smsdvb_clients); |
|
|
|
kmutex_unlock(&g_smsdvb_clientslock); |
|
|
|
client->event_fe_state = -1; |
|
client->event_unc_state = -1; |
|
sms_board_dvb3_event(client, DVB3_EVENT_HOTPLUG); |
|
|
|
sms_board_setup(coredev); |
|
|
|
if (smsdvb_debugfs_create(client) < 0) |
|
pr_info("failed to create debugfs node\n"); |
|
|
|
rc = dvb_create_media_graph(&client->adapter, true); |
|
if (rc < 0) { |
|
pr_err("dvb_create_media_graph failed %d\n", rc); |
|
goto media_graph_error; |
|
} |
|
|
|
pr_info("DVB interface registered.\n"); |
|
return 0; |
|
|
|
media_graph_error: |
|
smsdvb_debugfs_release(client); |
|
|
|
client_error: |
|
dvb_unregister_frontend(&client->frontend); |
|
|
|
frontend_error: |
|
dvb_dmxdev_release(&client->dmxdev); |
|
|
|
dmxdev_error: |
|
dvb_dmx_release(&client->demux); |
|
|
|
dvbdmx_error: |
|
smsdvb_media_device_unregister(client); |
|
dvb_unregister_adapter(&client->adapter); |
|
|
|
adapter_error: |
|
kfree(client); |
|
return rc; |
|
} |
|
|
|
static int __init smsdvb_module_init(void) |
|
{ |
|
int rc; |
|
|
|
INIT_LIST_HEAD(&g_smsdvb_clients); |
|
kmutex_init(&g_smsdvb_clientslock); |
|
|
|
smsdvb_debugfs_register(); |
|
|
|
rc = smscore_register_hotplug(smsdvb_hotplug); |
|
|
|
pr_debug("\n"); |
|
|
|
return rc; |
|
} |
|
|
|
static void __exit smsdvb_module_exit(void) |
|
{ |
|
smscore_unregister_hotplug(smsdvb_hotplug); |
|
|
|
kmutex_lock(&g_smsdvb_clientslock); |
|
|
|
while (!list_empty(&g_smsdvb_clients)) |
|
smsdvb_unregister_client((struct smsdvb_client_t *)g_smsdvb_clients.next); |
|
|
|
smsdvb_debugfs_unregister(); |
|
|
|
kmutex_unlock(&g_smsdvb_clientslock); |
|
} |
|
|
|
module_init(smsdvb_module_init); |
|
module_exit(smsdvb_module_exit); |
|
|
|
MODULE_DESCRIPTION("SMS DVB subsystem adaptation module"); |
|
MODULE_AUTHOR("Siano Mobile Silicon, Inc. ([email protected])"); |
|
MODULE_LICENSE("GPL");
|
|
|